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## Homework Statement

An inverted square pyramid has a height equal to 8m and a top edge equal to 3m. Initially, it contains water to a depth of 5m. What is the initial volume of water in the tank?

## Homework Equations

volume=1/3bh

where b is e2, as area of square base.

## The Attempt at a Solution

the height is given and the sides of square so can easily compute for the volume of the entire pyramid which is

vp(volume of pyramid)=24

the problem is i dont know the next step to get the volume of the liquid.

I tried so many formulas but theses none of those would fit in. HELP!